<template>
    <div class="shopcar-container">
        <!-- 商品列表区域 -->
        <div class="goods-list">
            <div class="mui-card">
                <div class="mui-card-content">
                    <div class="mui-card-content-inner">
                        <mt-switch></mt-switch>
                        <img src="../../images/swipe1.jpg">
                        <div class="info">
                            <h1>HUAWEI Mate 20 6GB+64GB 全网通版（亮黑色）</h1>
                            <p>
                                <span class="price">￥2599</span>
                                <numbox></numbox>
                                <!-- 如何从购物车中获取商品的数量 -->
                                <!-- 1、创建一个空对象，循环购物车中所有商品的数据，把当前循环这条商品的id作为对象的属性名，count作为对象的属性值，把所有商品循环一遍，得到一个对象：({ id:count }){ 1:1,2:2 }  -->
                                <a href="#" @click.prevent="remove(id,index)">删除</a>
                            </p>
                        </div>
                    </div>
                </div>
            </div>

            <!-- 
            <div class="mui-card" v-for="(item,index) in goodslist" :key="item.id">
                <div class="mui-card-content">
                    <div class="mui-card-content-inner">
                        <mt-switch @change="seletedChanged(item.id,$state.getters.getGoodsSelected[item.id])" v-model="$state.getters.getGoodsSelected[item.id]"></mt-switch>
                        <img :src="item.thumb_path">
                        <div class="info">
                            <h1>{{ item.title }}</h1>
                            <p>
                                <span class="price">￥{{ item.sell_price }}</span>
                                <numbox :initcount="$store.getters.getGoodsCount[item.id]" :goodsid="item.id"></numbox>
                                <a href="#" @click.prevent="remove(item.id,index)">删除</a>
                            </p>
                        </div>
                    </div>
                </div>
            </div>
             -->
        </div>

        <!-- 商品结算区域 -->
        <div class="mui-card">
            <div class="mui-card-content">
                <div class="mui-card-content-inner balance">
                    <div class="left">
                        <p>总计（不含运费）</p>
                        <p>已勾选商品 <span class="red">{{ $store.getters.getGoodsCountAndAmount.count }}</span> 件，总价 <span class="red">￥{{ $store.getters.getGoodsCountAndAmount.amount }}</span></p>
                    </div>
                    <mt-button type="danger">去结算</mt-button>
                </div>
            </div>
        </div>
    </div>
</template>

<script>
import numbox from '../subcomponents/Shopcar_numbox.vue'

export default {
    data() {
        return {
            goodslist:[] // 购物车中所有商品的数据
        }
    },
    created () {
        // this.getGoodsList();
    },
    methods: {
        getGoodsList(){
            // 获取到 store 中所有的商品的id，然后拼接出一个用逗号分隔的字符串
            var idArr = []
            this.$store.state.car.forEach(element => idArr.push(element.id));
            // 如果购物车中没有商品，则直接返回，不需要请求接口数据，否则会报错
            if(idArr.length<=0){
                return ;
            }
            // 获取购物车商品列表
            this.$http.get('api/goods/getshopcarlist/'+idArr.join(",")).then(result=>{
                if(result.body.status === 0){
                    this.goodslist = result.body.message;
                }
            })
        },
        remove(id,index){ // 删除，把商品从 store 中根据传递的id删除，同时把当前组件中的 goodsList 中对应要删除的那个商品，使用 index 删除
            this.goodslist.splice(index,1)
            this.$store.commit("removeFormCar",id)
        },
        seletedChanged(id,val){ // 每当点击开关，把最新的开关状态同步到 store 中
            // console.log(id+" -- "+val);
            this.$store.commit("updateGoodsSelected",{id,selected:val})
        }
    },
    components:{
        numbox
    }
}
</script>

<style lang="scss" scoped>
.shopcar-container{
    background-color: #eee;
    overflow: hidden;
    .goods-list{
        .mui-card-content-inner{
            display: flex;
            align-items: center;
        }
        img{
            width: 50px;
            height: 50px;
        }
        h1{
            font-size: 13px;
        }
        .info{
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            .price{
                color: red;
                font-weight: bold;
            }
        }
    }
    .balance{
        display: flex;
        justify-content: space-between;
        align-items: center;
        .red{
            color: red;
            font-size: 16px;
            font-weight: bold;
        }
    }
}
</style>